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Roux method

2014-05-25T03:40:36Z

Maps600: /* The Steps */

{{Method Infobox
|name=Roux
|image=Roux_method.gif
|proposers=[[Gilles Roux]]
|year=2003
|anames
|variants
|steps=4
|algs=9-42
|moves=[[Speedsolving|Speed]]:48, [[FM]]:28-
|purpose=<sup></sup>
* [[Speedsolving]]
* [[Fewest Moves]]
}}

The '''Roux Method''' (French pronunciation: [ʁu]) is a 3x3 speedsolving method invented by [[Gilles Roux]]. Unlike the [[Fridrich]] and [[Petrus]] methods, the inventor of this method has used it to achieve an official sub-15 average. Similarities can be drawn to the Petrus method's block building and the [[Waterman method]]'s layer-on-the-left and edges-last aspects.

==The Steps==

1. Build a 1x2x3 block anywhere on the cube.

2. Build a second 1x2x3 block opposite of the first 1x2x3 block, without disrupting the first 1x2x3 block. After this step, there should be two 1x2x3 blocks: one on the lower left side, and one lower right side, leaving the U slice and M slice free to move.

3. Simultaneously [[orient]] and [[permute]] the remaining 4 corners on the top layer (U-slice). You can use [[CMLL]],[[COLL]], or Corner OLL's (along with the T and Y permutation) to do this.

4a. [[Orient]] the 6 remaining edges using only M and U moves (UF, UB, UL, UR, DF, DB need to be oriented correctly).

4b. Solve the UL and UR edges, preserving edge orientation. After this step, both the left and right side layers should be complete.

4c. Solve the centers and edges in the M slice, ''see [[Last Six Edges]]''.

: ''See also: [[L5E]]''

==Pros==

Like the Petrus method, the Roux method uses fewer moves than the popular Fridrich method. It is also more intuitive and requires fewer algorithms. After the first block is built the rest of the cube can be solved mostly with R, r, M and U moves thus eliminating rotations.

==Cons==

Block building can be difficult for a beginner to get used to. The reliance on r and M moves may also be difficult for some people, so much so that cubers who have trouble with M turns should probably not use this as their main method (or better, practice practice practice the M moves). Slice turns can also be slower than using a [[quarter-turn metric]].

==Improvement==

Some Roux users have learned multiple algorithms for each CLL case, each affecting edges in a different way. This allows for manipulation of edge orientation, leading to an easier LSE.

Possibly another improvement is to expand to solving any of the four second blocks. This means that the D-layer colors of the two blocks don't have to match. One negative, if someone has already learned a recognition method for CLL, is that to easily use the full range of second block options, a switch to [[NMCLL]] recognition is necessary. Another is that LSE EO is a bit more difficult to recognize in some solves.

== Notable Users ==
* [[Gilles Roux]] [http://www.worldcubeassociation.org/results/p.php?i=2004ROUX01]
* [[Thom Barlow]] (Kirjava) [http://www.worldcubeassociation.org/results/p.php?i=2006BARL01]
* [[Austin Moore]] (BigGreen) [http://www.worldcubeassociation.org/results/p.php?i=2009MOOR01]
* [[Jules Manalang]] (Waffo) [http://www.worldcubeassociation.org/results/p.php?i=2008MANA02]
* [[Alexander Lau]] (5BLD) [http://www.worldcubeassociation.org/results/p.php?i=2011LAUA01]
* [[Mitsuki Gunji]]
* [[Artur Kristof]] (Arcio) [http://www.worldcubeassociation.org/results/p.php?i=2012KRIS12]

== External links ==
* [http://grrroux.free.fr/method/Intro.html Gilles Roux's tutorial]
* [http://wafflelikescubes.webs.com/ Waffle's Roux Site]
* Wikia: [http://rubiks.wikia.com/wiki/Roux_Method Roux Method]
* [http://www.speedsolving.com/forum/showthread.php?t=11506 Waffle's Roux Tutorial]
* [http://rouxtorial.webs.com/ 5BLD's and PandaCuber's Roux Tutorial]
* [http://www.speedsolving.com/forum/showthread.php?29123-The-reconstruction-thread&p=634675&viewfull=1#post634675 Reconstruction for BigGreen's unofficial Ao5 9.51]
* [http://games.groups.yahoo.com/group/speedsolvingrubikscube/message/5923 Original Method Proposal]

[[Category:3x3x3 methods]]
[[Category:3x3x3 Speedsolving Methods]]
[[Category:Fewest Moves Methods]]

Roux method

2014-05-25T03:39:54Z

Maps600: /* The Steps */

{{Method Infobox
|name=Roux
|image=Roux_method.gif
|proposers=[[Gilles Roux]]
|year=2003
|anames
|variants
|steps=4
|algs=9-42
|moves=[[Speedsolving|Speed]]:48, [[FM]]:28-
|purpose=<sup></sup>
* [[Speedsolving]]
* [[Fewest Moves]]
}}

The '''Roux Method''' (French pronunciation: [ʁu]) is a 3x3 speedsolving method invented by [[Gilles Roux]]. Unlike the [[Fridrich]] and [[Petrus]] methods, the inventor of this method has used it to achieve an official sub-15 average. Similarities can be drawn to the Petrus method's block building and the [[Waterman method]]'s layer-on-the-left and edges-last aspects.

==The Steps==

1. Build a 1x2x3 block anywhere on the cube.

2. Build a second 1x2x3 block opposite of the first 1x2x3 block, without disrupting the first 1x2x3 block. After this step, there should be two 1x2x3 blocks: one on the lower left side, and one lower right side, leaving the U slice and M slice free to move.

3. Simultaneously [[orient]] and [[permute]] the remaining 4 corners on the top layer (U-slice). You can use [[CMLL]],[[COLL]], or Corner OLL's (along with the T and Y permutation) to do this.

4a. [[Orient]] the 6 remaining edges using only M and U moves (UF, UB, UL, UR, DF, DB need to be oriented correctly).

4b. Solve the UL and UR edges, preserving the edge orientation. After this step, both the left and right side layers should be complete.

4c. Solve the centers and edges in the M slice, ''see [[Last Six Edges]]''.

: ''See also: [[L5E]]''

==Pros==

Like the Petrus method, the Roux method uses fewer moves than the popular Fridrich method. It is also more intuitive and requires fewer algorithms. After the first block is built the rest of the cube can be solved mostly with R, r, M and U moves thus eliminating rotations.

==Cons==

Block building can be difficult for a beginner to get used to. The reliance on r and M moves may also be difficult for some people, so much so that cubers who have trouble with M turns should probably not use this as their main method (or better, practice practice practice the M moves). Slice turns can also be slower than using a [[quarter-turn metric]].

==Improvement==

Some Roux users have learned multiple algorithms for each CLL case, each affecting edges in a different way. This allows for manipulation of edge orientation, leading to an easier LSE.

Possibly another improvement is to expand to solving any of the four second blocks. This means that the D-layer colors of the two blocks don't have to match. One negative, if someone has already learned a recognition method for CLL, is that to easily use the full range of second block options, a switch to [[NMCLL]] recognition is necessary. Another is that LSE EO is a bit more difficult to recognize in some solves.

== Notable Users ==
* [[Gilles Roux]] [http://www.worldcubeassociation.org/results/p.php?i=2004ROUX01]
* [[Thom Barlow]] (Kirjava) [http://www.worldcubeassociation.org/results/p.php?i=2006BARL01]
* [[Austin Moore]] (BigGreen) [http://www.worldcubeassociation.org/results/p.php?i=2009MOOR01]
* [[Jules Manalang]] (Waffo) [http://www.worldcubeassociation.org/results/p.php?i=2008MANA02]
* [[Alexander Lau]] (5BLD) [http://www.worldcubeassociation.org/results/p.php?i=2011LAUA01]
* [[Mitsuki Gunji]]
* [[Artur Kristof]] (Arcio) [http://www.worldcubeassociation.org/results/p.php?i=2012KRIS12]

== External links ==
* [http://grrroux.free.fr/method/Intro.html Gilles Roux's tutorial]
* [http://wafflelikescubes.webs.com/ Waffle's Roux Site]
* Wikia: [http://rubiks.wikia.com/wiki/Roux_Method Roux Method]
* [http://www.speedsolving.com/forum/showthread.php?t=11506 Waffle's Roux Tutorial]
* [http://rouxtorial.webs.com/ 5BLD's and PandaCuber's Roux Tutorial]
* [http://www.speedsolving.com/forum/showthread.php?29123-The-reconstruction-thread&p=634675&viewfull=1#post634675 Reconstruction for BigGreen's unofficial Ao5 9.51]
* [http://games.groups.yahoo.com/group/speedsolvingrubikscube/message/5923 Original Method Proposal]

[[Category:3x3x3 methods]]
[[Category:3x3x3 Speedsolving Methods]]
[[Category:Fewest Moves Methods]]

World Cube Association

2014-05-25T03:33:11Z

Maps600: /* List of official events */

[[Image:WCAlogo.jpg|thumb|left|The WCA logo]]

The '''World Cube Association''' (abbreviated as '''WCA''') is the ruling and organizing entity for [[speedsolving]] [[Rubik's Cube]] and other [[puzzle]]s. Although the WCA has no legal status, it is regarded by all top [[speedcuber]]s as the official organization for cubing competitions and records.

==History==

The WCA was founded by [[Ron van Bruchem]] and [[Tyson Mao]], who were also the first members of the [[WCA Board]], the governing body of the WCA. [[Gilles Roux]] joined as a board member in October, 2004, and [[Masayuki Akimoto]] in September, 2005. [[Gilles Roux]] retired from the board in November, 2008, and [[Masayuki Akimoto]] retired in the beginning of 2012. In July 2012, [[Sébastien Auroux]] and [[Tim Reynolds]] joined as board members.

==Requirements for an official competition==

The following is taken from the official WCA [http://www.worldcubeassociation.org/regulations/ regulations]. The following things are necessary for an official competition:
* The WCA Board must approve the competition.
* The WCA regulations must be followed.
* There must be a [[WCA delegate]] (appointed by WCA Board) attending the competition.
* The competition must be clearly announced, and should be announced at least a month before the competition starts.
* The competition must have at least 12 competitors.
* The competition must be accessible for the public.
* The [[Stackmat]] timer (at least Generation 2) must be used for time measurement.

Official results can only be set at WCA-official events. Because of this, non-WCA-official competitions tend to receive much less interest.

== List of official events ==
As of 2013, WCA recognizes the following 17 official events:
* 3x3 Speedsolve
* 4x4 Speedsolve
* 5x5 Speedsolve
* 2x2 Speedsolve
* 3x3 Blindfolded
* 3x3 [[OH|One-Handed]]
* 3x3 [[Fewest Moves]]
* 3x3 with Feet
* [[Megaminx]]
* [[Pyraminx]]
* [[Square-1]]
* [[Rubik's Clock]]
* 6x6 Speedsolve
* 7x7 Speedsolve
* 4x4 Blindfolded
* 5x5 Blindfolded
* Multi-BLD
* Skewb

== Former official events ==
* Rainbow Cube (removed in 2009)
* Siamese Cube (removed in 2009)
* Rubik's Magic (removed in 2013)
* Rubik's Master Magic (removed in 2013)

== Countries recognized ==
See by continent
* [[Africa]]
* [[Asia]]
* [[Europe]]
* [[North America]]
* [[South America]]
* [[Oceania]]

== External links ==
* [http://www.worldcubeassociation.org Main WCA website]
* [http://www.worldcubeassociation.org/results/ WCA official results page]

[[Category:Competitive Cubing]]
[[Category:Organizations]]
[[Category:Websites]]